WANNA CRY ( A Ransomware ), the popular word today. Ransomware is a malicious application which can be triggered by clicking on a phishing mail, image, docs, etc. and it will block the access of your data until a certain amount is not paid. And display a message for payment to unblock it. its basically based on cryptography. It will encrypt the victim files. Payment should be in digital currency Bitcoin(1 Bitcoin=113190.04 Indian Rupee). They are giving you a time period in which you have to make the payment to take files back. After run-out of the time the amount increases and then again a time window popup. But after passing that time window, if the payment is not done, then you will lost your access to the files permanently. The concept of file-encrypting ransomware was invented and implemented by Young and Yung at Columbia University and was presented at the 1996 IEEE Security & Privacy conference. It is called cryptoviral extortion and is the following 3-roun
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